If the shadow results from inks, dyes, boot polish or ANY color spray can with red in it ( for example red, brown, oranges, pinks, purples etc.) Apply Feltpen Fadeout several times daily, until it appears that no more fading will occur. Often this technique will ultimately fix the problem. remember once you see the stain fade a little you will definitely fade the rest if Feltpen Fadeout is left on longer to dwell.
Only do this if it is safe from the general public. Employ a guard if you have to. In the morning, use very hot water with a pressure washer. You may have to use the gun quite close to the surface so avoid prolonged time in gunning in one spot only. Keep the tip moving very fast around, over, below and above the graffiti shadow.
Repeat if needed.
Hint: Other people’s 'stuff ups’ can take a lot of time to fix. Don’t under quote or underestimate the job. Set an hourly rate.
3 Golden Rules
1) IF GRAFFITI IS NOT COMING OFF EASILY, YOU’RE DOING IT WRONG! You may require a change of tact or use of another product.
2) IF YOU CAN’T REMOVE A LITTLE BIT OF GRAFFITI, THEN YOU’RE NOT GOING TO REMOVE A LOT! TEST FIRST before applying product to an entire job. This way you can determine if you’re on the right track before embarking on full scale removals.
3) IF YOU’RE WORKING HARD, YOU’RE DOING IT WRONG! Forget the scrubbing, blasting and any other abrasive measures. Put simply, either your products are working or they’re not. Any problems can be taken care of with the right technique.